US4082760AExpiredUtility

Derivatives of 2h,3h-benzimidazo(1,2-b)oxazole

Assignee: ITALCHEMI SPAPriority: Dec 5, 1975Filed: Dec 5, 1975Granted: Apr 4, 1978

Est. expiryDec 5, 1995(expired)· nominal 20-yr term from priority

Inventors:Fulvio Benigni Lucio Trevisan

C07D 235/24

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References

Claims

Abstract

Derivatives of 2H, 3H-benzimidazo (1,2-b) oxazole have the property of inhibiting the beta-lactamase produced by many germs resistant to penicillins and cephalosporins, and may be used in mixture with these antibiotics to increase their activity.

Claims

exact text as granted — not AI-modified

We claim: 
     
       1. 2H,3H-benzimidazo-(1,2-b)oxazole. 
     
     
       2. 2-hydroxymethyl-2H,3H-benzimidazo-(1,2-b)oxazole. 
     
     
       3. 2-carbethoxy-3-methyl-2H,3H-benzimidazo-(1,2-b)oxazole.

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